JPS59197075A - Safety seal - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a seat stopper-1 which is used for sealing a lock on a closed object such as a vehicle door or a 1000-bag bag, where the affix of the seal is to detect theft. In other words, regarding seals.

Known seals of this type are often made from a single strip of molded plastic, with a socket formed at one end of the strip and a small diameter shackle extending from the outside of the strip. Once pulled into the socket, a non-removable locking engagement is formed. This o't・
The seal is disclosed in U.S. Pat. Seals with the same %M are considered to be fully satisfactory in many application fields, but the precision molding of the locking part is unique, and the reliability of the seal is less than desired due to variations in tolerance. There are times when it is inferior. Although it is desirable for locking means such as loops, female snap caps, etc. to be relatively large, in many applications where seals are used, the opening through which the seal must be assembled is too small and the snap closure cannot be passed through it. I can't.

Additionally, seals such as those described above typically include a weakened portion that can break if an unauthorized person attempts to pry the seal open. However, in some instances, seals that have broken at the weakened point can be reassembled without leaving any obvious evidence that they were pried open by heat welding the broken ends together with a pine or light lighter. It recognized.

Additionally, some areas where the seal is to be used require long loops of the shackle, and some users of the seal have sealing fasteners that are better suited for short shackles, while others prefer long shackle loops. There are situations in which it is more suitable.

Also, in each case it is generally necessary to have a confirmation number on the shackle and to make the number easily readable.

The present invention provides a molded plastic safety seal that is particularly suitable for use in closures with clasps such as those used on mail bags.

The seal consists of an elongated flat strip having a first stop at one end and a second stop in the middle. The end of the strip opposite the end having the first stop has an opening which can freely pass through a clasp having a stop and in which the receptacle is received and retained between the assembled stops.

In a preferred embodiment of the invention, the first stop is a socket;
The Ωth stop consists of a stud, and both stops are permanently locked into the assembly.

The stud has a weakened portion at its base. This weakened portion has an axial length and shape such that when the seal is broken and resealed, the stud technique is compromised by an amount such that the stud cannot be reengaged to the fingers of the socket.

In a variant embodiment of the invention, the strip has at least two openings, one of which receives the stud when the stud and socket are assembled. Also, the shackle between the stud and the socket is provided with a slot for receiving the tip of the strip, and the size of the loop formed by the shank is selected to suit the requirements of the particular sealing fastener.

The slot between the stud and socket not only receives the tip of the strip, but also provides a weakened area to facilitate folding of the shackle and engagement of the stud and socket. The sockets are positioned so that they are properly matched and assembled. In a preferred embodiment of this variant, both apertures are interconnected so that the identification number is located on the strip between the apertures and is clearly visible when either aperture is assembled to the stud. spaced apart.

Referring to FIGS. 1-g, there is shown a stop or seal 10, which consists of a flat elongated strip 12. Referring to FIGS. A snap socket 14 is provided at one end of the strip 12, a stud 16 projects from the middle of the strip 12, and an opening 20 is provided at the free end 18 of the strip 12.
is provided.

In a preferred embodiment of the invention, the socket 14 has resilient internal fingers 22 and the stud 16 is defined with a shoulder 24. The dimensions of the finger 22 and the shoulder 24 of the stud 16 are such that the stud 16 is
An open finger 22, which is fitted with a snap f, is seated on the underside of the shoulder 24 of the stud 16, so that the stud 16 cannot be removed without breaking this stop.

The seal 10 is intended to be attached to the clasp 26 of a postal bag skin 28, in which case the free end 18 is folded back over the clasp 26 to close its opening. 20 is traded to stand 16. Next, socket 1
The strip portion between 4 and stand 16 is folded back so that socket 14 snaps down onto stud 16 as shown in FIG.

Such a socket and stud 9, due to their respective dimensions, provides a more secure locking engagement than conventional seals used for the same purpose, and the free end 18 is not provided with a fixed part. Thus, clasps/hooks that are too small to pass through the fixing portion can also be passed through the free end 18 of the entire assembly.

In order to increase the reliability of the seal by detecting pry build-up, the stud 16 is provided with a weakened section that can withstand compressive forces applied to the stud during assembly, but does not allow the stud to be pried from the socket. The structure is such that it will tear if tensile force is applied to the car stud.

In the illustrated embodiment, this is provided by a pair of slots 30 formed on either side of the shank portion of the stud 16 and at the connection to the strip;
0 is formed with a connecting web portion 32 having a significantly smaller cross-sectional area than the rest of the shank portion of the suitad 16.

When the socket 14 is snapped down onto the stand 16, the associated compressive force will tend to crush the narrowed portion of the shank, but the slot 30 will not widen axially, but may also collapse into the shank of the stud. Formed at the bottom of the section, the dagger that the stud can move downwardly is limited, thus inhibiting the tendency of the shank section of the stud to be laterally crushed.

On the other hand, if a tensile force is applied to the shank of the stud when an unauthorized Nagisa tries to pry open the seal, the narrowed part of the shank can easily be torn apart. Depending on the PJT preference, the slots 30 may be formed as seven openings extending around the base of the shank.

As mentioned above, one way to covertly break this type of seal is by welding the broken ends together using heat. In the case of a seal in which a weakened portion is provided in the shackle, both ends of the shackle that have been broken at the weakened portion can be simultaneously heated and joined together. The fact that the length of the shackle is slightly shortened during this process is not a serious problem.

In the case of the present invention, it is also possible to tear the stud from the strip at the weakened part at the base of the shank part, then push the stud out of the socket and attach it to the strip again by welding. However, such attachment is more difficult than attaching both ends of a broken shackle by welding, and it takes a considerable amount of time even for those who are indignant about it.

On the other hand, since the connecting web 32 is broken by the welding punch, the welding punch described above necessarily shortens the overall length of the stud by at least a small amount corresponding to the width of the slot 30.

Therefore, during the manufacture of the seal, manufacturing tolerances in the dimensions of the stud 16 and finger 22 are such that the fin snaps onto the bevel of the stud shoulder 24 only when the stand is fully inserted into the socket. must be established.

In a typical seal of the type described above, the distance from the outer surface of the strip 18 (when assembled) to the underside of the shoulder 24 of the stud (when the stud is shown in FIG. q) on the stand insertion side is Approximately 0.0/0 inch (θ, 023
The length of the stud is determined so that it becomes larger (4'cm). The length of the other slot in the axial direction is approximately 0.030
inch (0.07 otsu 2 cm). Therefore, the length of the stud is approximately 0.03θ inch (0.07θ2
σ). Block the wandering socket to the stud,
When attempting to reassemble the seal, the stud is no longer open and the shoulder 24 of the stud cannot pass over the tip of the finger 22 (see section g1-1), making it impossible to lock the stud in the socket! It is il ability.

The elastic force of the finger against the head of the stud holds the stand and socket together, but this is temporary; the spring force of the bent shackle allows the socket to be pulled away from the stud. (-Mari.

In the illustrated embodiment of the invention, the socket 14 is open at the end opposite the stud insert 1, but depending on the F9T%, the socket 14 may be heat-sealed or plugged into the opening for an even more secure seal. You can also use a simple method to remove the open end, regardless of how quiet it is.

Referring to Figures 9 through 1, there is a seal 1.
A variant embodiment of 0 is shown f71, which can also be a flat elongated strip 12 at one end. A snap-fastening socket 14 is provided at one end of the strip 12, and a stud 16 projects from the strip 12 at a position spaced apart from the socket 4. The strip portion 18 extending beyond the stud 16 is narrower than the portion supporting the stud and socket and is provided with at least λ openings spaced apart from each other by a predetermined distance for purposes described below. The first opening 20 is located relatively close to the stand, while the second opening 22 is located near the free end of the shackle.The portion of the shackle between the openings may be provided with identifying numbers or letters. .

Slot 2 in the shackle between the stand and the socket
4 is formed, and this slot 24 is connected to the first slot 24 as described below.
When assembling the seal using the opening, the narrow part of the skin band]
The receiver is wide enough to accommodate 8.

This provision of an elongated shank portion 18 and two separate widely spaced openings allows the seal to be
Not only can it be used with legal closing fasteners, but the V mark is clearly visible no matter which opening is used.

As shown in Fig. 10, Fig. 1/1, the sealing part having the aperture 22 is attached to the stud 16, and then the portion of the piece 12 between the stud and the socket is inserted so that the socket is fitted into the stand with the nut f. By folding the second
Once the seal is assembled using the aperture 22, the relatively large loose 26 is shaped and the one chain introduction tool to be sealed, each sound 1', is used to force the seal against the closing fastener, which is comparatively 1liv. You can do it.

As is clear from Figure 1, when the seal is assembled in this manner, the identification number is clearly visible.

When assembling the seal to an opening angle/fastener that has parts close to each other, fold back the shirt kururi Jidabata 1/18 and press it into the slot 24; σ1 shi, 1. / Place the opening 20 in the stud to form the small loop 28 and then snap the socket into the stand as above. The free end of the shackle then projects out of the loop 30 formed by the stud and the shackle part 91 of the socket m1, again with the identification number clearly visible.

It is of course possible to provide openings at other locations in the shackle portion 18, but an opening at the location shown would be applicable to most closed lead fasteners, and the identification number would also be exposed.

In addition to receiving the shackle end, the slot 24 also serves the following functions. That is, not only does it facilitate the bending of the strip to engage the stop portion, but when such bending occurs, most of the bending occurs at the slot location. The slots are thus located between the stops so that when folded they are precisely aligned and automatically engage when the strip 12 is folded back.

In the illustrated embodiment of the invention, the socket has resilient fingers dimensioned to lock onto the thoracic back of the stud; however, without departing from the scope of the invention, Of course, a combination of these can also be used.

The fingers of the socket shown in Figures 70-/4' can be used as desired, as described in connection with the embodiment of Figures 1-9.
Alternatively, it may be formed as a separate unit and held in the socket for a fixed period of time by heat sealing or other methods.

The stud may also be provided with a weakened portion at the base of the stud as described in connection with the embodiment of FIGS. 1V-3.

Without departing from the scope of the present invention (as it is obvious to those skilled in the art that the above-described embodiments can be modified in various ways,
All of the matters mentioned above are merely examples, and are not intended to be limiting.

[Brief explanation of the drawing]

Fig. 7 is a plan view of a seal embodying the present invention; Fig. 2 is a cross-sectional view of a part of the seal shown in Fig. 1; Fig. 3 is a seal applied to a clasp of a mail bag, etc. A perspective view of the seal; Figure 3 is a cross-sectional side view of a portion of the seal, showing the state in which each component is assembled in a predetermined manner; Figure 3 is a state in which the stud is torn and the seal is opened. Figure 4 is a sectional view taken along line O-6 in Figure 1; Figure 7 is a sectional view taken along line 7-7 in Figure 3; Figure 3 is a cross-sectional view taken along line 7-7 in Figure 1; 9 shows the seal of FIG. 3 after it has been re-welded to the strip, particularly as the stud is about to be re-fitted into the socket; FIG. 9 shows a seal embodying the invention; Plan view showing another embodiment; 1st OI! 21 is a side view of the seal shown in FIG. 9 with the first opening of the shackle installed in the stud and the socket in position before final assembly; FIG. 1/ is a side view of the seal shown in FIG. 9; A perspective view showing the seal of FIG. The figure shows the seventh stage after assembly is completed.
．． FIG. 2 is a diagram showing the seal of FIG. 2; 10... Seal, 12... Curved strip, 14...
Hammer/socket, 16...Stud, 1
8. Free end of band, 18.. Narrow band section, 20.. Opening, 22.. Opening, 22.. Bent finger, 24. Between.・Shoulder of stud, 24...Slot, 26...
Curved Sumirekin, 26...Large loop, 28...
...Small loop, 30...Stud slot, 32...Curtswebu capital.

Claims (1)

Claims: (1) A safety seal made from a single piece of molded plastic comprising: an elongated shackle; an integral seventh snap stop formed at one end of the shackle; an integral λ-th snap stop part formed at a spaced apart intermediate portion thereof, and the shape and dimensions are such that both said snap stop parts are irremovably lockingly engaged, said first co-snap stop part and said first snap stop part being the λ-th snap stop part is spaced from the first snap stop part by a certain distance from the first snap stop part such that an intermediate shackle portion between the first snap stop part and the first snap stop part can be folded back and the both snap stop parts can be engaged; A lateral shank portion extending from said second snap stop in a direction away from said first snap stop is provided with an opening at a predetermined distance from said second snap stop so that said side The side shackle portion passes through the opening in the closure member to be sealed, and one of the snap-fastening portions is adapted to be folded back into the opening of said side shackle portion, said opening being inserted into said opening. A safety seal characterized in that said side shackle portions having said side shackle portions are retained during assembly by the assembly of one snap stop into the other snap stop. (2. The safety seal according to claim 7, wherein the first snap stop comprises a socket, the socket is provided with a central opening with an inner resilient finger, and the first snap stop includes a central opening with an inner resilient finger. comprises a stud projecting upwardly from said intermediate shank portion, said stud defining a shank and an enlarged head; a distinct shoulder is provided between said shank and said enlarged head; The dimensions of the socket are such that when the stud is assembled into the socket, a non-removable locking fit is obtained with the finger seated behind the shoulder of the stand. A safety seal characterized by: (3) In the safety coolant according to claim 2, a weakened portion is formed in the shank of the stud, and the weakened portion has a width smaller than the other shank portions. (4) In the safety seal according to claim 3, when the stud is completely incorporated into the socket, the weakened portion is A safety seal having an axial length larger than the space between the ends of the finger and the shoulder. (5) The safety seal according to claim 3, wherein the frangible (6) a shackle and a lock located on the shackle in mutually spaced relation; A safety seal comprising a stud and a socket shaped and dimensioned to engage, the stud having a shank extending from the shackle and an enlarged head forming a locking shoulder, the socket having one side thereof; a stud-receiving opening opened to a surface, and an elastic finger provided in the opening, the elastic finger being inclined inwardly in a direction away from the surface, and having a locking chest for the stud during assembly. the shank of the front stand is provided with a weakened section, said weakened section being wider than the rest of the shank of the front stand; The length of the weakened portion in the axial direction is such that when the stud is torn at the weakened portion and the torn ends are welded together without the web, , the length of the stand is reduced and the stud is reattached to i.
1. Even if the locking shoulder is inserted into the socket as specified, the distance is such that the locking shoulder does not reach the end of the finger and the stud cannot engage with the socket. sticker. (7) In the safety seal according to claim 6, the dimensions of the stud and the socket are such that when the stud is fully inserted into the socket,
The locking shoulder extends beyond the end of the finger by a predetermined distance, and the axial length of the weakened portion is greater than the predetermined distance. Seal. (8) A safety seal comprising a first strip portion and a λth strip portion, the first strip portion having a pair of spaced apart stop portions, and the first strip portion having a pair of spaced apart stop portions. The first strip part is mounted on the first strip so as to engage these stopper parts in a locking manner when the strip is folded back. An opening is formed in the λ-th strip portion extending from one portion, and the opening is received in one of the stop portions so that when the both stop portions are engaged, the end of the λ-th strip portion is formed. the opening in the first strip portion is positioned so as to hold the thread in place, and the opening in the first strip portion is positioned so as to hold the second
Safety seal 0 (9) In the safety seal according to claim (g), the slot is provided with a slot dimensioned to receive the leading edge of the strip portion. A safety seal having a pair of spaced apart apertures and an identification mark provided between the apertures. 00) In the safety seal according to claim g>, the slot makes the strip brittle, so that when the part including the slot is folded back, the part is mainly located at the slot. A safety seal wherein said slot is positioned such that said socket and said stud align and lock into locking engagement upon folding and bending. 011% In the safety seal according to claim 1O, one of the stop portions is a socket extending in one direction from the surface of the strip, and the other stop portion is formed of a socket extending in the opposite direction from the surface of the strip. A safety seal characterized in that it consists of a stud extending in the direction. (12+) In the safety seal according to claim 1θ, the third strip portion has at least two spaced apart openings and an intermediate portion in which a confirmation mark is inserted between the two openings. one of the apertures is disposed near the free end of the second strip section, and when the seal is assembled with the one opening in the stud, the first λ strip section a large loop is formed by the intermediate portion, a confirmation mark on the intermediate portion is visible located on the outside of the large loop, the other of the openings is mated near the stud, and the other When the seal is assembled with the opening in the stand, a small loop is formed by the second strip section, the free end of the second strip section extends through the slot, and a strap extends from the slot. Make sure that a verification mark is visible on the free end of the #
Safety sea with F life.